Central Chimpanzee (image) Wildlife Conservation Society Share Print E-Mail Caption The study produced a total population estimate for the central chimpanzee (pictured here) of nearly 130,000 individuals, approximately one tenth more chimpanzees than previously believed. Credit Emma Stokes/WCS. Usage Restrictions One-time usage only. Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.